> browse/registry

> webflow

You are an expert in Webflow, the visual web development platform that combines a design tool with a CMS and hosting. You help teams build responsive websites, landing pages, and content-driven sites using Webflow's visual builder, CMS collections, Ecommerce, form handling, and Webflow APIs — enabling designers to build production websites without writing code while giving developers API access for custom integrations and dynamic content.

> xano

Expert guidance for Xano, the no-code/low-code backend platform for building APIs, databases, and authentication without writing server code. Helps developers and non-technical builders create production-ready REST APIs with visual function stacks, manage data models, and integrate with frontend frameworks.

> xstate

Model complex UI logic with XState state machines. Use when a user asks to manage complex multi-step flows, model stateful UI (wizards, forms, auth), prevent impossible states, or implement finite state machines in JavaScript.

> posthog

Open-source product analytics with PostHog — event tracking, funnels, cohorts, session replay, feature flags, and experimentation. Self-host with Docker or use PostHog Cloud. Covers JavaScript SDK for frontend tracking, Python SDK for backend events, autocapture configuration, custom event taxonomies, and funnel/retention analysis. Use when tasks involve adding product analytics, understanding user behavior, debugging UX with session replay, or rolling out features with feature flags.

> readme-fix

Standardize README.md to match repo conventions. Brief purpose, quick start, and links to docs/. Keep content verifiable, concise, and ASCII. Use when README.md drifted or is missing key pointers.

> skill-writing-guide

Guide for authoring Agent Skills (SKILL.md). Covers the open standard format, required frontmatter, directory layout, progressive disclosure, description writing, and best practices. Use when creating a new skill, improving an existing skill, or learning how skills work.

> python-code-review

Comprehensive Python code review focused on bugs, correctness, security, maintainability, and actionable fixes. Use when a user asks for a review of Python files, wants severity-rated findings, wants before/after fix suggestions, or wants verification that implementation matches an active plan document (if one exists). Start by applying read-repo-rules to AGENTS.md, docs/REPO_STYLE.md, docs/PYTHON_STYLE.md, and docs/CHANGELOG.md so review guidance follows repository rules.

> pyside6-ui-engineer

Design, implement, refactor, and review PySide6 desktop applications with strong widget architecture, signal-slot design, state flow, and expert UI/UX logic. Use when building or fixing Qt for Python windows, dialogs, forms, navigation shells, model-view tables, theming, validation, accessibility, or interaction polish in Python GUI code.

> webwork-writer

Create, edit, and lint WeBWorK PG/PGML questions following docs/webwork guidance, HTML whitelist constraints, and renderer-based lint checks. Use for tasks like authoring new PGML problems, adjusting randomization or grading, fixing PGML rendering issues, and running renderer API linting.

> grc-messaging-guardrails

Validates compliance, security, and GRC terminology in marketing copy. Enforces accurate claims, prevents common mistakes (e.g., calling SOC 2 a "certification"), and applies risk-first narrative framing for B2B SaaS audiences. Use when writing or reviewing any marketing content that references compliance frameworks, security standards, regulatory requirements, or audit processes. Also use when creating ads, landing pages, emails, case studies, or sales collateral for GRC/cybersecurity B2B SaaS

> pipeline-attribution-narrator

Builds multi-touch pipeline attribution models and generates stakeholder-ready narratives from campaign performance data. Use when analyzing channel contribution to pipeline, preparing monthly/quarterly revenue reports for leadership, diagnosing pipeline misses, modeling budget reallocation scenarios, or translating raw attribution data into board-deck language. Designed for B2B SaaS demand gen teams that report on pipeline and revenue, not leads or MQLs.

> frontend-security-coder

Expert in secure frontend coding practices specializing in XSS prevention, output sanitization, and client-side security patterns. Use PROACTIVELY for frontend security implementations or client-side security code reviews.

> unity-developer

Build Unity games with optimized C# scripts, efficient rendering, and proper asset management. Masters Unity 6 LTS, URP/HDRP pipelines, and cross-platform deployment. Handles gameplay systems, UI implementation, and platform optimization. Use PROACTIVELY for Unity performance issues, game mechanics, or cross-platform builds.

> expo-tailwind-setup

Set up Tailwind CSS v4 in Expo with react-native-css and NativeWind v5 for universal styling

> web-design

网页设计与部署。生成精美的单页 HTML 网页（报告、落地页、数据可视化等），支持一键部署到 Cloudflare Pages。使用 Tailwind CSS + Chart.js + Font Awesome 技术栈。当用户要求制作网页、生成报告页面、创建落地页、数据可视化展示、部署网页到线上时使用。

> artifacts-builder

Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.

> spatial-swiftui-developer

Design and implement visionOS SwiftUI scenes that integrate RealityKit content. Use when building spatial UI with RealityView, Model3D, attachments, volumetric windows, ImmersiveSpace, or spatial gestures, or when choosing SwiftUI vs RealityKit APIs for 3D presentation.

> building-native-ui

Complete guide for building beautiful apps with Expo Router. Covers fundamentals, styling, components, navigation, animations, patterns, and native tabs.

> socratic-method

Transform Claude into a Socratic tutor that guides users to discover knowledge through disciplined questioning rather than direct instruction. Use when users need help with learning, critical thinking, problem-solving, or when they request "teach me", "help me understand", "I want to learn", or similar educational interactions. Also use for cognitive restructuring (therapy-style), logical analysis (law/philosophy), strategic decision-making (coaching), or text analysis (seminar-style).

> socratic-method

Verwandelt Claude in einen sokratischen Tutor, der Nutzende durch diszipliniertes Fragen zur Wissensentdeckung anleitet, anstatt direkt zu instruieren. Nutzen bei Lernbedürfnissen, kritischem Denken, Problemlösung oder wenn Nutzende «erkläre mir», «hilf mir zu verstehen», «ich möchte lernen» oder ähnliche pädagogische Interaktionen anfordern. Auch für kognitive Umstrukturierung (Therapie-Stil), logische Analyse (Recht/Philosophie), strategische Entscheidungsfindung (Coaching) oder Textanalyse (S